On Jun 26, 2006, at 3:52 PM, David VanHorn wrote:

> My printer does this.  It does regular DHCP, then the front end  
> software
> finds it, presumably with a broadcast to an oddball port or an "are  
> you my
> mommy" scan.

Probably "mommy" just sends out a broadcast packet that all  
"children" know to respond to in a certain way.  If your LAN were a  
class A (e.g. 10.0.0.0/8) it'd take "mommy" a very long time to find  
her "children".  :-)

You could find out for sure, for free... http://www.wireshark.org  
(the "non-fork" of Ethereal).

Nate
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